The Cipher Series — Original Worlds
Complete Series
The Cipher Series
A cryptographer. A dead satellite. A conspiracy that reaches the highest levels of government. The Cipher Series is a two-book thriller sequence built for back-to-back listening — each book ends where the next one begins.
Listening Order
Start at Book 1
The series is designed to be listened to in order. Each book ends on a revelation that reframes the next.
Book 1
The Hollow Signal
A signal from the dead. A truth that kills.
A cryptographer receives a distress signal from a satellite decommissioned three years ago. What she finds on the other end will unravel everything she thought she knew about her past — and put a target on her back.
Book 2
The Last Frequency
Some transmissions were never meant to be received.
Six months after the events of The Hollow Signal, a new message surfaces — this time embedded in a live news broadcast. The cryptographer must go deeper into a conspiracy that reaches the highest levels of government.
New to the Series?
Start with The Hollow Signal
Book 1 is a complete story — it works as a standalone thriller. But if you finish it and want to know what happens next, The Last Frequency picks up exactly where it left off. Listen to them back to back for the full experience.